Tongue and groove system



FIG. 1 is a side view of the tongue and groove system with the tongue and groove together.

FIG. 2 is a side view of the tongue and groove system with the tongue and groove apart.

FIG. 3 is a side perspective view showing the tongue of the tongue and groove system.

FIG. 4 is a side perspective view showing the groove of the tongue and groove system; and,

FIG. 5 is a side perspective view of the tongue and groove system with the tongue and groove apart.

The present application is directed to the design illustrated in the drawings. The broken line portions of the disclosure are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a tongue and groove system, as shown and described. 